Lived in Dubai for a year or so. It is fantastic, though may be a bit pricey but there are some bargains to be had if you investigate in advance, such as the big 5 star hotels. Pick ups by stretch limos etc. But less available during the big festivals there.
Booze is not a big issue, some of the best bars I have ever been to are in Dubai.
Medicines? keep prescriptions handy.
When outside hotel areas just be reasonable.
In Ramadam things become very conservative so avoid.
Do some internet research as you woud on any vacation
Cheers